Chemistry Year 12 Random Retrieval

This quiz contains all the questions in the year 12 chemistry section. The website will pick 10 questions at random.

1 / 10

Which of these alcohols are isomers of butan-1-ol?

(i) CH₃CH₂CHOHCH₃

(ii) (CH₃)₃COH

(iii) CH₃CH(CH₃)CH₂OH

(iv) (CH₃)₃CCH₂OH

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

2 / 10

What is the formula of 2-bromo-3-methylpentane?

CH₃CH₂CH(CH₃)CHBrCH₃

CH₃CH(CH₂Br)CH₂CH₂CH₃

CH₃CH₂CHBrCH(CH₃)CH₃

CH₃CHBrCH₂CH(CH₃)CH₃

3 / 10

Choose one of the following options:

4‐chloro‐4‐methylhexanal

3‐chloro‐3‐methylhexanal

3‐chloro‐3‐methylhexanone

4‐chloro‐4‐methylhexan-1-ol

4 / 10

Choose one of the following options:

7‐bromo‐4‐methylhept-2-ene

1‐bromo‐4‐methylhept-2-ene

4‐bromo‐1‐methylhept-2-ene

1‐bromo‐3-propylbut-2-ene

5 / 10

What is the oxidation number of CARBON in

C₂H₆

6 / 10

Which of these properties of magnesium are also properties of beryllium?

(i) It forms a basic oxide

(ii) It forms an ionic chloride

(iii) It reacts with dilute hydrochloric acid

(iv) It forms a stable oxide with the formula MO (where M represents the metal atom)

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

7 / 10

The total O.N. of all the halogen atoms in these compounds ClO^-, BrO^-, ICl, XeF₄ is:

4

2

0

-2

8 / 10

Sodium hydride reacts with water:

NaH_(s) + H₂O_(l) -> NaOH_(aq) + H_2(g)

What is the concentration of a solution of sodium hydroxide formed when 0.600 g sodium hydride reacts with water and the solution is diluted to 100 cm³?

0.025 mol dm^-3

0.25 mol dm^-3

2.5 mol dm^-3

5.0 mol dm^-3

9 / 10

Which of these compounds consists of a giant structure of ions?

ice

silicon dioxide

hydrogen iodide

potassium bromide

10 / 10

Which of these conversions are reductions?

(i) CrO₄²^- to Cr₂O₇²^-

(ii) CrO₄²^- to Cr³⁺

(iii) CrO₄²^- to CrO₃

(iv) CrO₃ to Cr₂O₃

(i), (ii) and (iii)

(i) and (iii) only

(ii) and (iv) only

(iv) alone

Your score is

0%

Recent Posts

Categories